●●● ●●●● ●●●● 1.3酶的分类与命名 ●●●● 0●●●● ●●●● 1961年国际酶学委员会( Enzyme Committee, EC)根据 酶所催化的反应类型和机理,把酶分成6大类: International Classification of enzymes* No Class Type of reaction catalyzed Oxidoreductases Transfer of electrons(hydride ions or H atoms) 1234 Transferases Group-transfer reactions Hy drolases Hydrolysis reactions(transfer of functional groups to water) Lyases Addition of groups to double bonds, or formation of double bonds by removal of groups 5 Isomerases Transfer of groups within molecules to yield isomeric forms 6 Ligases Formation of c-C c-S C-O and C-N bonds by condensation reactions coupled to ATP cleavage Most enzymes catalyze the transfer of electrons, atoms, or functional groups. They are therefore classified, given code numbers and assigned names according to the type of transfer reaction the group donor, and the group acceptor.1961年国际酶学委员会（Enzyme Committee, EC）根据 酶所催化的反应类型和机理，把酶分成6大类： 1.3 酶的分类与命名